(Michael, playing Super Mario Galaxy, and facing the notorious Bugaboom): “I’m going to crush you and steal your star bits, you ugly bug! Grrrrrr!”
(Michael, getting ready to brush his teeth, noticing a stink bug on the edge of the bathtub): “Daddy! A bug! Get rid of it! But don’t squish it, just take it outside!”
I guess if it isn’t preventing you from rescuing Princess Peach, there’s no point in hurting it.